comparison toolboxes/FullBNT-1.0.7/bnt/potentials/@mpot/mpot_to_cpot.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function can = mpot_to_cpot(mom)
+% MPOT_TO_CPOT Convert a moment potential to canonical form.
+% mom = mpot_to_cpot(can)
+
+[g, h, K] = moment_to_canonical(mom.logp, mom.mu, mom.Sigma);
+can = cpot(mom.domain, mom.sizes, g, h, K);
+
+%%%%%%%%%%%
+
+function [g, h, K] = moment_to_canonical(logp, mu, Sigma)
+% MOMENT_TO_CANONICAL Convert moment characteristics to canonical form.
+% [g, h, K] = moment_to_canonical(logp, mu, Sigma)
+
+K = inv(Sigma);
+h = K*mu;
+n = length(K);
+if isempty(mu)
+  g = logp + 0.5*(log(det(K)) - n*log(2*pi));
+else
+  g = logp + 0.5*(log(det(K)) - n*log(2*pi) - mu'*K*mu);
+end